1.

If bar(a), bar(b), bar(c) are the position vectors of the vertices A, B, C of the triangle ABC, then the equation of the median from A to BC is

Answer»

`BAR(R)=bar(a)+t(bar(B)+bar(C))`
`bar(r)=bar(a)+t[1/2(bar(b)+bar(c))-bar(a)]`
`bar(r)=bar(a)+t(bar(b))+bar(c)`
`bar(r)=-bar(a)+t(bar(b))+bar(c)`

ANSWER :B


Discussion

No Comment Found